Nursing Elites

1. In the Gram Stain procedure, which component acts as the mordant?

• A. Crystal violet
• B. Methyl alcohol
• C. Iodine
• D. Safranin

Correct answer: C

Rationale: In the Gram Stain procedure, the mordant is Gram's Iodine. The purpose of the mordant is to form a complex with the crystal violet, enhancing its ability to bind to the cell wall. Crystal violet is actually the primary stain used in the Gram Stain procedure to initially color all cells. Methyl alcohol is the decolorizer that removes the crystal violet from certain cell types. Safranin is the counterstain used to stain those cells that did not retain the crystal violet stain after the decolorization step.

2. You have been asked to record the amount of food that the person has eaten during each meal. What kinds of words or numbers would you use to record this food intake?

• A. A little, a moderate amount, or all of the meal
• B. 50 cc, 100 cc, or 500 cc of the meal
• C. 25%, 50%, or 100% of the meal
• D. Either A or C

Correct answer: C

Rationale: Food intake is typically measured in terms of the percentage (%) of food that has been eaten. Using percentages allows for a more precise and standardized way of recording food consumption. For instance, you would record 25% of the vegetable if the person has eaten about a quarter of the vegetables on the plate. Choices A and B are incorrect. Choice A's terms 'a little' and 'a moderate amount' are vague and not specific enough for accurate documentation. Choice B's use of cc is more appropriate for measuring fluids, not solid foods. Choice D is also incorrect as it combines vague terms with percentages, which could lead to confusion in accurately documenting the food intake.

3. A resident brings several electronic devices to a nursing home. One of the devices has a two-pronged plug. What rationale should the nurse provide when explaining why an electrical device must have a three-pronged plug?

• A. Controls stray electrical currents.
• B. Promotes efficient use of electricity.
• C. Shuts off the appliance if there is an electrical surge.
• D. Divides the electricity among the appliances in the room.

Correct answer: A

Rationale: A three-pronged plug functions as a ground to dissipate stray electrical currents. This helps prevent electrical shocks and ensures the safety of the user. Choice B is incorrect because the number of prongs on a plug does not impact the efficient use of electricity. Choice C is incorrect because a three-pronged plug does not shut off the appliance during an electrical surge; that role is typically fulfilled by surge protectors. Choice D is incorrect as a three-pronged plug does not divide electricity among appliances in a room; it primarily serves as a safety measure to handle excess electrical currents.

4. What is the anatomic structure located in the middle of the heart that separates the right and left ventricles?

• A. Septum
• B. Sputum
• C. Separator
• D. None of the above

Correct answer: A

Rationale: The correct answer is the septum. The septum is a structure located in the middle of the heart that separates the right and left ventricles. It plays a crucial role in maintaining the separation between the two ventricles to ensure efficient blood flow. The other choices, 'Sputum' and 'Separator,' are incorrect as they do not refer to the anatomic structure in the heart that serves this specific function. 'Sputum' is a term used to describe phlegm or mucus, not an anatomical structure, and 'Separator' is a generic term that does not specifically identify the cardiac structure mentioned in the question.

5. Match the abbreviation with the correct definition:

• A. bid: twice a day
• B. tid: three times a day
• C. ac: before meals
• D. pc: after meals

Correct answer: C

Rationale: The abbreviation 'ac' stands for 'ante cibum,' which means 'before meals.' 'Bid' means twice a day. 'Tid' means three times a day, and 'pc' means after meals. When interpreting medical abbreviations, it is crucial to understand their precise meanings to ensure accurate communication and patient care.

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